The Bolt,ring, cataloged under National Stock Number 5306-01-385-6991, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Puritas Metal Products Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-385-6991 |
| Primary Part Number | PMP05134 |
| Item Name | Bolt,ring |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Puritas Metal Products Inc |
| Status | ACTIVE |
| Ring Stock Diameter | 0.500 INCHES NOMINAL IN |
| Eye Stock Diameter | 0.500 INCHES NOMINAL IN |
| Thread Length | 1.190 INCHES NOMINAL IN |
| Shank Length | 1.380 INCHES NOMINAL IN |
| Style Designator | ROUND, CLOSED |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Eye Inside Diameter | 3.000 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 4130 OVERALL |
| Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| PMP05134 PRIMARY | Puritas Metal Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 13227E9509 | 5/9 Secondary reference U S Army Aviation and Troop Command Troop |
NSN 5306-01-385-6991 is a Bolt,ring, manufactured by Puritas Metal Products Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-385-6991 has 1 manufacturer part number on file: PMP05134 (Puritas Metal Products Inc).
Key specifications for PMP05134: Ring Stock Diameter: 0.500 INCHES NOMINAL IN; Eye Stock Diameter: 0.500 INCHES NOMINAL IN; Thread Length: 1.190 INCHES NOMINAL IN; Shank Length: 1.380 INCHES NOMINAL IN. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.